Artificial pacemaker: Difference between revisions
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In [[medicine]] and [[cardiology]], an artificial pacemaker is a "device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external)."<ref>{{MeSH}}</ref> | In [[medicine]] and [[cardiology]], an artificial pacemaker is a "device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external)."<ref>{{MeSH}}</ref> | ||
==History== | ==History== | ||
In the 1980s many implantations of pacemakers were unnecessary or need was not adequately documented.<ref name="pmid3336403">{{cite journal |author=Greenspan AM, Kay HR, Berger BC, Greenberg RM, Greenspon AJ, Gaughan MJ |title=Incidence of unwarranted implantation of permanent cardiac pacemakers in a large medical population |journal=N. Engl. J. Med. |volume=318 |issue=3 |pages=158–63 |year=1988 |month=January |pmid=3336403 |doi= |url= |issn=}}</ref> | In the 1980s many implantations of pacemakers were unnecessary or need was not adequately documented.<ref name="pmid3336403">{{cite journal |author=Greenspan AM, Kay HR, Berger BC, Greenberg RM, Greenspon AJ, Gaughan MJ |title=Incidence of unwarranted implantation of permanent cardiac pacemakers in a large medical population |journal=N. Engl. J. Med. |volume=318 |issue=3 |pages=158–63 |year=1988 |month=January |pmid=3336403 |doi= |url= |issn=}}</ref> | ||
==Types== | |||
The basic two types of pacemaker provide contractile pulses when the heart is beating too slowly (i.e., [[bradycardia]] pacemaker) or has an inefficient, overly fast rhythm that must be overcome (i.e., [[tachycardia]] pacemaker). Modern pacemakers have considerable computing power and physiological sensors, and can adjust the rate of pacing both for clinical optimization and extending battery life. | |||
For patients at high risk for [[ventricular tachycardia]] or [[ventricular fibrillation]], an extension to tachycardia pacemaking is the [[implantable cardioverter-defibrillator]]. | |||
==References== | ==References== | ||
<references/> | <references/> | ||
Revision as of 00:58, 17 February 2009
In medicine and cardiology, an artificial pacemaker is a "device designed to stimulate, by electric impulses, contraction of the heart muscles. It may be temporary (external) or permanent (internal or internal-external)."[1]
History
In the 1980s many implantations of pacemakers were unnecessary or need was not adequately documented.[2]
Types
The basic two types of pacemaker provide contractile pulses when the heart is beating too slowly (i.e., bradycardia pacemaker) or has an inefficient, overly fast rhythm that must be overcome (i.e., tachycardia pacemaker). Modern pacemakers have considerable computing power and physiological sensors, and can adjust the rate of pacing both for clinical optimization and extending battery life.
For patients at high risk for ventricular tachycardia or ventricular fibrillation, an extension to tachycardia pacemaking is the implantable cardioverter-defibrillator.
References
- ↑ Anonymous (2024), Artificial pacemaker (English). Medical Subject Headings. U.S. National Library of Medicine.
- ↑ Greenspan AM, Kay HR, Berger BC, Greenberg RM, Greenspon AJ, Gaughan MJ (January 1988). "Incidence of unwarranted implantation of permanent cardiac pacemakers in a large medical population". N. Engl. J. Med. 318 (3): 158–63. PMID 3336403. [e]